It's a work-around, but there is a way to delete those pesky empty Google+ albums from your Gallery
Has your Gallery gone haywire with blank and duplicate Google+ albums? Don't worry, you're not alone. Since the implementation of Google+ Instant Upload and its deep integration into the included Gallery app, more and more of the photos you see on your device aren't actually... on your device. This all works great until there's an issue -- and what many people have been experiencing is duplicate, blank, and mislabeled albums showing up in their Gallery.
The problem is there's no way from the Gallery to manage these photos, it has to be done on the web. If you've been having issues with weird albums showing up in your Gallery, hang tight after the break and see if we can do something about that.
Source: http://feedproxy.google.com/~r/androidcentral/~3/Almd562fGFs/story01.htm